Brønsted acidic SILP-based catalysts with H3PMo12O40 or H3PW12O40 in the oxidative desulfurization of fuels

Bryzhin, A. A.; Gantman, M. G.; Buryak, А. К.; Tarkhanova, I. G.

doi:10.1016/j.apcatb.2019.117938

Cited by 69 publications

(18 citation statements)

References 71 publications

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“…Thus, at similar reaction conditions the TOF value estimated from the data for impregnated heterogeneous catalyst on the base of ammonium polytungstate is 25 h −1 . The most efficient catalyst on the base of H 3 PW 12 O 40 and a catalytically active ionic liquid provides TOF value of 140 h −1 , whereas TOF of LED prepared NiW/Al 2 O 3 catalyst reaches 7700 h −1 (Table ). The reason of this high activity may be also related to the interface interaction providing electron transfer between different electronic states of metals in key stages of oxidation as it was described above for CO oxidation.…”

Section: Resultsmentioning

confidence: 99%

Bimetallic Nanostructured Catalysts Prepared by Laser Electrodispersion: Structure and Activity in Redox Reactions

et al. 2020

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One‐stage size‐selective method of laser electrodispersion (LED) was used to produce nanostructured NiPd, NiMo and NiW coatings on the surface of alumina, HOPG and Sibunit for the catalytic application. The deposition of nanoparticles produced by LED of bimetallic targets from alloyed or pressed metal powders provides the uniform distribution of both metals on the outer support surface; the metal ratio is similar to that in the original target. The catalytic behaviour of produced “core‐shell” catalysts in comparison with monometallic analogues was tested in two model reactions: the CO oxidation with oxygen on NiPd catalysts supported on alumina and Sibunit; and thiophene oxidation with hydrogen peroxide on NiMo and NiW alumina supported catalysts. Novel LED bimetallic catalysts with extremely low metal content (0.005 %) were superior in terms of activity and stability to monometallic ones and the catalysts obtained by “wet” chemistry methods. Improved catalytic properties of bimetallic LED catalysts are related to the high density of single nanoparticles and the formation of active metal‐oxide interfaces on the support surface.

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Section: Resultsmentioning

confidence: 99%

Bimetallic Nanostructured Catalysts Prepared by Laser Electrodispersion: Structure and Activity in Redox Reactions

et al. 2020

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“…The ionic liquid (4-(3'-ethylimidazolium)-butanesulfonate) was subjected to protonation with the use of two heteropolyacids (H 3 PMo 12 O 40 and H 3 PW 12 O 40 ) followed by immobilization on surfaces of silica and γ-alumina. The obtained SILP systems imparted stability to heteropolyanions, due to which the formed catalytic system became stable and enabled several oxidation reactions to be conducted with the use of the same portion of the catalyst [84]. On the other hand, the SILP system with Lewis acid centers appeared to be a good catalytic solution to selective hydrogenation of benzofuran derivatives.…”

Section: Supported Ionic Liquid Phase Catalysts (Silpcs)mentioning

confidence: 99%

Heterogeneous Catalysis with the Participation of Ionic Liquids

et al. 2020

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This mini-review briefly describes the recent progress in the design and development of catalysts based on the presence of ionic liquids. In particular, the focus was on heterogeneous systems (supported ionic liquid (IL) phase catalysts (SILPC), solid catalysts with ILs (SCILL), porous liquids), which due to the low amounts of ionic liquids needed for their production, eliminate basic problems observed in the case of the employment of ionic liquids in homogeneous systems, such as high price, high viscosity, and efficient isolation from post-reaction mixtures.

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“…At the same time, the significant growth rates of fossil fuel consumption became an undeniable concern for those who care for environmental issues. One of the main issues is the emission of pollutants such as SO x , NO x , and particulate matter into the atmosphere, during the combustion of fuels 4‐6 . These toxic substances, in particular sulfur‐containing impurities, pose adverse environmental and human health impacts.…”

Section: Introductionmentioning

confidence: 99%

“…These toxic substances, in particular sulfur‐containing impurities, pose adverse environmental and human health impacts. At high concentrations, SO x gases can contribute to respiratory illness, acid rain, and global warming 4,7 . To control conventional SO x emission, the specific universal rules have become more severe to reduce the sulfur level in transportation fuel (below 10 ppm) 8 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of (Gly) ₃ PMo ₁₂ O ₄₀ @ MnFe ₂ O ₄ organic/inorganic hybrid nanocomposite as an efficient and magnetically recoverable catalyst for oxidative desulfurization of liquid fuels

Rezvani

Khandan

Rahim

2021

Intl J of Energy Research

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Summary Here, we report on the preparation and characterization of a new organic/inorganic hybrid nanocomposite comprised of the glycine‐modified polyoxomolybdate (abbreviated as (Gly)3PMo12O40) and manganese ferrite (MnFe2O4) nanoparticles. The hybrid nanocomposite was successfully synthesized under mild ultrasound irradiation and characterized by powder X‐ray diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscope, energy dispersive X‐ray, and vibrating sample magnetometer techniques. To explore the (Gly)3PMo12O40@MnFe2O4 applicability, it was used in catalytic oxidative desulfurization (Cat‐ODS) reactions. The experimental results revealed excellent catalytic activity of the hybrid nanocomposite in the removal of hazardous organosulfur compounds from model fuel oils (MFOs) and typical real gasoline. The sulfur removal from MFOs could reach up to 95% at the operating temperature of 35°C, the ambient pressure, and the contact time of 1 hour. Quite surprisingly, the total sulfur content of real gasoline was lowered from 0.4985 to 0.0198 wt% under the same reaction conditions. In addition, the (Gly)3PMo12O40@MnFe2O4 presented a brilliant magnetically reusability with slight diminution after seven consecutive Cat‐ODS cycles. These results encourage the further exploration of the application of (Gly)3PMo12O40@MnFe2O4 organic/inorganic hybrid nanocomposite in the production of clean diesel and jet fuels.

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Brønsted acidic SILP-based catalysts with H3PMo12O40 or H3PW12O40 in the oxidative desulfurization of fuels

Cited by 69 publications

References 71 publications

Bimetallic Nanostructured Catalysts Prepared by Laser Electrodispersion: Structure and Activity in Redox Reactions

Bimetallic Nanostructured Catalysts Prepared by Laser Electrodispersion: Structure and Activity in Redox Reactions

Heterogeneous Catalysis with the Participation of Ionic Liquids

Synthesis of (Gly) ₃ PMo ₁₂ O ₄₀ @ MnFe ₂ O ₄ organic/inorganic hybrid nanocomposite as an efficient and magnetically recoverable catalyst for oxidative desulfurization of liquid fuels

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Brønsted acidic SILP-based catalysts with H3PMo12O40 or H3PW12O40 in the oxidative desulfurization of fuels

Cited by 69 publications

References 71 publications

Bimetallic Nanostructured Catalysts Prepared by Laser Electrodispersion: Structure and Activity in Redox Reactions

Bimetallic Nanostructured Catalysts Prepared by Laser Electrodispersion: Structure and Activity in Redox Reactions

Heterogeneous Catalysis with the Participation of Ionic Liquids

Synthesis of (Gly) 3 PMo 12 O 40 @ MnFe 2 O 4 organic/inorganic hybrid nanocomposite as an efficient and magnetically recoverable catalyst for oxidative desulfurization of liquid fuels

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Synthesis of (Gly) ₃ PMo ₁₂ O ₄₀ @ MnFe ₂ O ₄ organic/inorganic hybrid nanocomposite as an efficient and magnetically recoverable catalyst for oxidative desulfurization of liquid fuels